Top Tips for Developers

'Shodan' is a
free on-screen virtual gamepad designed to enable people to
play fighting games using cursor input alone.

By moving your cursor over the on-screen buttons you
can emulate keyboard button presses and combinations
of keyboard presses. You can choose your own actions for the
buttons (go to 'Configure Controls') and then you can make combo
moves from these by selecting on-screen buttons such as '1+3'
to combine those two buttons. A (free) game to test this
with, as recommended by Graeme ofwww.graemesfreegames.com,
is M.U.G.E.N.

There is also a version of Shodan made for Super Street Fighter IV:
Arcade Edition with some characters moves already preset into the
controls (it is recommended that you test to see if this version of
Shodan works on your PC before purchasing SSFIV:AE).

Shodan is not restricted to fighting games, visit the site below
for examples and experiment yourself!